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Shortwave with AM/FM IC - RF Cafe Forums
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Qacer
Post subject: Shortwave with AM/FM IC Posted: Mon Aug 15,
2005 4:44 pm
Captain
Joined: Sat Apr 23, 2005 2:09 pm
Posts: 17
Location: Tampa, FL
Hello all,
I'm curious.
Do you think this idea is feasible? I wanted to process SW signals using
an AM/FM IC. I only want to demodulate amplitude modulated SW signals.
I was thinking that if down-convert the SW frequency to AM levels, then
I can just send the down-converted frequency to the IC.
Any tips
would be greatly appreciate. Thanks!
Top
Guest
Post subject: Use of Single-chip receiver as IFPosted: Tue Aug 16,
2005 5:48 pm
Absolutely you can do this - the amateur radio community
has used this approach for years. The NE602 IC is a favorite in that
community for the downconverter stage. Its only problem is its low 3rd
order intercept - which means that it overloads more easily than one
might like.
Good Luck!
Posted
11/12/2012
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